diff --git a/db/sql/postgres/feature/performance/docs/presentations.txt b/db/sql/postgres/feature/performance/docs/presentations.txt
index 6e620f65b..a7d875065 100644
--- a/db/sql/postgres/feature/performance/docs/presentations.txt
+++ b/db/sql/postgres/feature/performance/docs/presentations.txt
@@ -1,5 +1,5 @@
 2024
-Digitalize - PG Optimization Basics 1:54:00 of 2:07:51
+Digitalize - PG Optimization Basics of 2:07:51
     https://www.youtube.com/watch?v=gA3A_epB3So
     ! 13:00 - from index pages go into buffer-cache in RAM
     ! 37:00 - select ... from employee e join contacts ec using(employee_id) -- on e.employee_id = ec.employee_id
diff --git a/db/sql/postgres/feature/performance/explain/reference.txt b/db/sql/postgres/feature/performance/explain/reference.txt
new file mode 100644
index 000000000..47632fadc
--- /dev/null
+++ b/db/sql/postgres/feature/performance/explain/reference.txt
@@ -0,0 +1 @@
+https://www.pgmustard.com/docs/explain
diff --git a/db/sql/postgres/feature/performance/index/presentations.txt b/db/sql/postgres/feature/performance/index/presentations.txt
index 670867392..4d54e4b83 100644
--- a/db/sql/postgres/feature/performance/index/presentations.txt
+++ b/db/sql/postgres/feature/performance/index/presentations.txt
@@ -4,6 +4,8 @@ AzatYakupov - BTree Index in PG 0:00 of 1:09:10
 JPoint - Salnikov - PostgreSQL Indices ru 0:00 of 2:00:44
     https://www.youtube.com/watch?v=ju9F8OvnL4E
     https://squidex.jugru.team/api/assets/srm/5a15546d-af53-46d4-be84-63367a5aaaf3/jpoint2022.andrei-.salsnikov.pdf
+Percona - PostgreSQL Indexes demystified — Charly Batista 0:00 of 2:40:09
+    https://www.youtube.com/watch?v=C3GGR4f8CLk
 2023
 JPoint - Sitnikov - B-Tree indices using Boot, PostgreSQL, JPA 18:00 of 45:07
     https://www.youtube.com/watch?v=y-Wtyvme4gE
@@ -23,6 +25,11 @@ Tenzor - Backend School - PG Indices p2 0:00 of 1:21:33
     https://www.youtube.com/watch?v=WTELBpLUb2E
 Tenzor - Backend School - PG Indices p1 0:00 of 1:10:44
     https://www.youtube.com/watch?v=sNCKlklvGO0
+2022
+Percona - A Deep Dive Into PostgreSQL Indexing - Ibrar Ahmad 0:00 of 46:10
+    https://www.youtube.com/watch?v=7OvrBmxW_e8
+    https://www.youtube.com/watch?v=yWrJC2k1C8A
+    ! by company of pg_stat_activity ext
 2017
 BartunovKorotkov - All truth about Indices 0:00 of 46:35
     https://www.youtube.com/watch?v=aaecM4wKdhY
diff --git a/db/sql/postgres/feature/performance/index/types.txt b/db/sql/postgres/feature/performance/index/types/brin.txt
similarity index 100%
rename from db/sql/postgres/feature/performance/index/types.txt
rename to db/sql/postgres/feature/performance/index/types/brin.txt
diff --git a/db/sql/postgres/feature/performance/index/gist.txt b/db/sql/postgres/feature/performance/index/types/gist.txt
similarity index 100%
rename from db/sql/postgres/feature/performance/index/gist.txt
rename to db/sql/postgres/feature/performance/index/types/gist.txt
diff --git a/db/sql/postgres/feature/performance/index/types/index-onlys-scan.txt b/db/sql/postgres/feature/performance/index/types/index-onlys-scan.txt
new file mode 100644
index 000000000..990e674cd
--- /dev/null
+++ b/db/sql/postgres/feature/performance/index/types/index-onlys-scan.txt
@@ -0,0 +1,5 @@
+https://www.postgresql.org/docs/current/indexes-index-only-scans.html
+
+2024
+PG.FM 109 - Index-Only Scans 0:00 of 39:14
+    https://www.youtube.com/watch?v=0SROLA-aBqY
diff --git a/db/sql/postgres/feature/performance/index/unique.txt b/db/sql/postgres/feature/performance/index/types/unique.txt
similarity index 100%
rename from db/sql/postgres/feature/performance/index/unique.txt
rename to db/sql/postgres/feature/performance/index/types/unique.txt
diff --git a/db/sql/postgres/feature/performance/tools/pg-stat-monitor.txt b/db/sql/postgres/feature/performance/tools/pg-stat-monitor.txt
new file mode 100644
index 000000000..f58ce04c2
--- /dev/null
+++ b/db/sql/postgres/feature/performance/tools/pg-stat-monitor.txt
@@ -0,0 +1,8 @@
+https://docs.percona.com/pg-stat-monitor/
+https://github.com/percona/pg_stat_monitor
+
+2024
+Percona - pg_stat_monitor: A Featured Rich And Enhanced Version — Ibrar Ahmed of 32:49
+    https://www.youtube.com/watch?v=eFKLQ4-N0WM
+Percona - Quick Wins for Performance Troubleshooting With pg stat monitor — Pablo Svampa 0:00 of 51:43
+    https://www.youtube.com/watch?v=g87gnuIXSgk
diff --git a/db/sql/postgres/feature/performance/tools/pgmustard.txt b/db/sql/postgres/feature/performance/tools/pgmustard.txt
new file mode 100644
index 000000000..c10b15e26
--- /dev/null
+++ b/db/sql/postgres/feature/performance/tools/pgmustard.txt
@@ -0,0 +1 @@
+https://www.pgmustard.com/
diff --git a/db/sql/postgres/feature/query/window-functions/articles.txt b/db/sql/postgres/feature/query/window-functions/articles.txt
new file mode 100644
index 000000000..694e4b6d7
--- /dev/null
+++ b/db/sql/postgres/feature/query/window-functions/articles.txt
@@ -0,0 +1,2 @@
+2015
+https://habr.com/ru/post/268983/
diff --git a/db/sql/postgres/feature/query/window-functions/presentations.txt b/db/sql/postgres/feature/query/window-functions/presentations.txt
new file mode 100644
index 000000000..08d3686b9
--- /dev/null
+++ b/db/sql/postgres/feature/query/window-functions/presentations.txt
@@ -0,0 +1,3 @@
+2020
+EDB - The Magic of Window Functions in Postgres 0:00 of 1:03:01
+    https://www.youtube.com/watch?v=XO1WnmJs9RI
diff --git a/db/sql/postgres/feature/query/window-functions.txt b/db/sql/postgres/feature/query/window-functions/samples.txt
similarity index 74%
rename from db/sql/postgres/feature/query/window-functions.txt
rename to db/sql/postgres/feature/query/window-functions/samples.txt
index 6300067b3..10526508e 100644
--- a/db/sql/postgres/feature/query/window-functions.txt
+++ b/db/sql/postgres/feature/query/window-functions/samples.txt
@@ -1,16 +1,3 @@
-https://postgrespro.ru/docs/postgrespro/15/tutorial-window
-https://postgrespro.ru/docs/postgrespro/15/functions-window
-
-https://www.postgresql.org/docs/current/tutorial-window.html
-https://www.postgresql.org/docs/current/functions-window.html
-
-https://postgrespro.ru/docs/postgrespro/15/sql-expressions#SYNTAX-WINDOW-FUNCTIONS
-    !!!
-https://postgrespro.ru/docs/postgrespro/15/queries-table-expressions#QUERIES-WINDOW
-
-2015
-https://habr.com/ru/post/268983/
-
 partition
     https://edu.postgrespro.ru/sqlprimer/sqlprimer-2019-msu-04.pdf
     ! p68
diff --git a/db/sql/postgres/feature/query/window-functions/window-functions.txt b/db/sql/postgres/feature/query/window-functions/window-functions.txt
new file mode 100644
index 000000000..d4cac1634
--- /dev/null
+++ b/db/sql/postgres/feature/query/window-functions/window-functions.txt
@@ -0,0 +1,9 @@
+https://postgrespro.ru/docs/postgrespro/15/tutorial-window
+https://postgrespro.ru/docs/postgrespro/15/functions-window
+
+https://www.postgresql.org/docs/current/tutorial-window.html
+https://www.postgresql.org/docs/current/functions-window.html
+
+https://postgrespro.ru/docs/postgrespro/15/sql-expressions#SYNTAX-WINDOW-FUNCTIONS
+    !!!
+https://postgrespro.ru/docs/postgrespro/15/queries-table-expressions#QUERIES-WINDOW
diff --git a/db/sql/postgres/tools/client/pgadmin/debugger.txt b/db/sql/postgres/tools/client/pgadmin/debugger.txt
new file mode 100644
index 000000000..ef1a851ab
--- /dev/null
+++ b/db/sql/postgres/tools/client/pgadmin/debugger.txt
@@ -0,0 +1,9 @@
+https://www.pgadmin.org/docs/pgadmin4/latest/debugger.html
+
+postgresql.conf
+    shared_preload_libraries = ‘$libdir/plugin_debugger’
+    # after modifying - restart the server to apply the changes.
+
+2021
+EDB - pgAdmin Debugger Tool of 7:43
+    https://www.youtube.com/watch?v=wYyUjmnsbT4
diff --git a/db/sql/postgres/tools/client/pgadmin.txt b/db/sql/postgres/tools/client/pgadmin/inst.txt
similarity index 59%
rename from db/sql/postgres/tools/client/pgadmin.txt
rename to db/sql/postgres/tools/client/pgadmin/inst.txt
index 6627aac15..9ea6c1562 100644
--- a/db/sql/postgres/tools/client/pgadmin.txt
+++ b/db/sql/postgres/tools/client/pgadmin/inst.txt
@@ -5,7 +5,23 @@ rpm
     sudo rpm -i https://ftp.postgresql.org/pub/pgadmin/pgadmin4/yum/pgadmin4-fedora-repo-2-1.noarch.rpm
     sudo yum install pgadmin4-desktop
 
+
 apt/
+    # Install the public key for the repository (if not done previously):
+    sudo curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add
+
+    # Create the repository configuration file:
+    sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/$(lsb_release -cs) pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update'
+
+    # Install for desktop mode only:
+    sudo apt install pgadmin4-desktop
+
+    # Install for web mode only:
+    sudo apt install pgadmin4-web
+
+    # Install for both desktop and web modes:
+    sudo apt install pgadmin4
+
     https://www.pgadmin.org/download/pgadmin-4-apt/
     pgadmin4
         6.9 - both desktop and web
@@ -31,50 +47,10 @@ apt/
     # Choose one of pgadmin4, pgadmin4-desktop, pgadmin4-web
     sudo apt-get install -y pgadmin4-desktop
 
-https://www.pgadmin.org/download/pgadmin-4-container/
-https://hub.docker.com/r/dpage/pgadmin4/
-    dpage/pgadmin4
-    https://www.pgadmin.org/docs/pgadmin4/latest/container_deployment.html
-
-https://www.pgadmin.org/docs/pgadmin4/8.13/query_tool.html
-
-files
-/usr/share/applications/pgadmin4.desktop
-
-inst
-2021
-PythonToday - PostgreSQL and pgAdmin4 inst on Ubuntu of 8:18
-    https://www.youtube.com/watch?v=kWUW3sMK0Mk
 apt-key
     https://zalinux.ru/?p=5066
     https://itsfoss.com/apt-key-deprecated/
 
-#
-# Setup the repository
-#
-
-# Install the public key for the repository (if not done previously):
-sudo curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add
-
-# Create the repository configuration file:
-sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/$(lsb_release -cs) pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update'
-
-#
-# Install pgAdmin
-#
-
-# Install for desktop mode only:
-sudo apt install pgadmin4-desktop
-
-# Install for web mode only:
-sudo apt install pgadmin4-web
-
-# Configure the webserver, if you installed pgadmin4-web:
-sudo /usr/pgadmin4/bin/setup-web.sh
-
-# Install for both desktop and web modes:
-sudo apt install pgadmin4
-
-
-debugger
-https://www.pgadmin.org/docs/pgadmin4/latest/debugger.html
+2021
+PythonToday - PostgreSQL and pgAdmin4 inst on Ubuntu of 8:18
+    https://www.youtube.com/watch?v=kWUW3sMK0Mk
diff --git a/db/sql/postgres/tools/client/pgadmin/pgadmin.txt b/db/sql/postgres/tools/client/pgadmin/pgadmin.txt
new file mode 100644
index 000000000..6d0848c0d
--- /dev/null
+++ b/db/sql/postgres/tools/client/pgadmin/pgadmin.txt
@@ -0,0 +1,11 @@
+https://www.pgadmin.org
+
+https://www.pgadmin.org/download/pgadmin-4-container/
+https://hub.docker.com/r/dpage/pgadmin4/
+    dpage/pgadmin4
+    https://www.pgadmin.org/docs/pgadmin4/latest/container_deployment.html
+
+https://www.pgadmin.org/docs/pgadmin4/8.13/query_tool.html
+
+files
+/usr/share/applications/pgadmin4.desktop
diff --git a/db/sql/postgres/tools/monitor/pg-stat-monitor.txt b/db/sql/postgres/tools/monitor/pg-stat-monitor.txt
deleted file mode 100644
index 51d59ab87..000000000
--- a/db/sql/postgres/tools/monitor/pg-stat-monitor.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-https://docs.percona.com/pg-stat-monitor/
-https://github.com/percona/pg_stat_monitor
diff --git a/pages/pages.txt b/pages/pages.txt
index ac599ba10..a04fb27b7 100644
--- a/pages/pages.txt
+++ b/pages/pages.txt
@@ -1,7 +1,8 @@
 kc - 76 of ...
 try http
     hurl
-internals 16 - 357
+pg internals 16 - 357
+kafka - 76
 
 Harrison - MongoDB 117 of 360
 
diff --git a/pl/cross/messaging/kafka/docs/presentations.txt b/pl/cross/messaging/kafka/docs/presentations.txt
index ebe9da6cf..159de37a8 100644
--- a/pl/cross/messaging/kafka/docs/presentations.txt
+++ b/pl/cross/messaging/kafka/docs/presentations.txt
@@ -30,13 +30,7 @@ Bogdanovskiy - Kafka Fundamentals of 49:22
 Korolkov - Rabbit 0:00 of 1:09:39
     https://www.youtube.com/watch?v=ijR2VXgSQO4
         https://github.com/kaa-ghub/spring-cloud-stream-demo
-2020
-Koshelve - Speeding Up Producers 0:00 of 1:11:53
-    https://www.youtube.com/watch?v=zMLfxztAVlo
 2019
-Koshelev - Po Kafke
-    https://www.youtube.com/watch?v=A_yUaPARv8U
-    https://assets.ctfassets.net/oxjq45e8ilak/5C3BJ4jXm0xaI5Cz8ZN2ra/e3cceba5659722f6d94859f0e96356dc/Grigoriy_Koshelev_Kogda_vs_poshlo_po_Kafke.pdf
 https://habr.com/ru/company/jugru/blog/451268/
     https://speakerdeck.com/jugmsk/viktor-gamov-kafka-streams-iq-zachiem-nam-baza-dannykh-nam-baza-nie-nuzhna
 https://inponomarev.github.io/kstreams-examples/#/
diff --git a/pl/cross/messaging/kafka/features/internals/presentations.txt b/pl/cross/messaging/kafka/features/internals/presentations.txt
new file mode 100644
index 000000000..79ab55566
--- /dev/null
+++ b/pl/cross/messaging/kafka/features/internals/presentations.txt
@@ -0,0 +1,22 @@
+2022
+JPoint - Koshelev - By Kafka 3 - Apache Kafka and Consumers of 53:43
+    https://www.youtube.com/watch?v=NXU_F_7STSM
+    https://squidex.jugru.team/api/assets/srm/9830ff16-aa51-46e7-b08f-62dc3e5e4996/grigorii-koshelev.pdf
+    ! 16:08 Under the hood of consumer are:
+    !   KafkaConsumer
+    !   ConsumerMetadata
+    !   SubscriptionState // subscriptions
+    !   ConsumerNetworkClient
+    !   NetworkClient
+    !   Fetcher
+    !   ConsumerCoordinator   // if consumer groups are used
+    !     assign (we specify concrete partitions)
+    !     subscribe - auto ...
+    !   !!! subscribe - can subscribe for multiple topics, named accroding to some regex-pattern
+2020
+Koshelev - Speeding Up Producers 0:00 of 1:11:53
+    https://www.youtube.com/watch?v=zMLfxztAVlo
+2019
+Koshelev - By Kafka
+    https://www.youtube.com/watch?v=A_yUaPARv8U
+    https://assets.ctfassets.net/oxjq45e8ilak/5C3BJ4jXm0xaI5Cz8ZN2ra/e3cceba5659722f6d94859f0e96356dc/Grigoriy_Koshelev_Kogda_vs_poshlo_po_Kafke.pdf
diff --git a/pl/cross/methodologies/cqrs/presentations.txt b/pl/cross/methodologies/cqrs/presentations.txt
index fc7dd131a..affc4c5c3 100644
--- a/pl/cross/methodologies/cqrs/presentations.txt
+++ b/pl/cross/methodologies/cqrs/presentations.txt
@@ -3,7 +3,7 @@ Javapro - CQRS in the Small with Java Records and jOOQ | Simon Martinelli (EN) o
     https://www.youtube.com/watch?v=bxywf9CGRkc
     https://github.com/simasch/cqrs-meets-modern-java
 2021
-HardAndSoftSkills - Veinik - CQRS 13:00 of 1:30:30
+HardAndSoftSkills - Veinik - CQRS 18:00 of 1:30:30
     https://www.youtube.com/watch?v=gNtNz9RgoTA
     https://www.slideshare.net/slideshow/software-craftsmanship-meetup-21-cqrs/250829667
 2014